mod: 侧边栏、动态重构，排行改为首页分区，平板、折叠屏、竖屏视频新适配，播放页可隐藏黑边、截图、点踩，弹幕粗细调整，默认关闭后台播放，弹窗接受返回

lib/http/dynamics.dart

@@ -5,15 +5,13 @@ import 'index.dart';
 class DynamicsHttp {
   static Future followDynamic({
     String? type,
-    int? page,
     String? offset,
     int? mid,
   }) async {
     Map<String, dynamic> data = {
       'type': type ?? 'all',
-      'page': page ?? 1,
       'timezone_offset': '-480',
-      'offset': page == 1 ? '' : offset,
+      'offset': offset,
       'features': 'itemOpusStyle'
     };
     if (mid != -1) {